Filtering-machine.



W.v M. 'BARKELL FILTERING MACHINE. APPLIGAT'ION FILED MAY 9, 190s.

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APPLICATION FILED MAY 9. 1998.

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'WILLIAMMATTHEWBARKER, or MeeILL, NEVADA, Assreivon or ONE-HALE "ro H3A.

GUESS, OF FLAT RIVER, 'lllssOURI.

- FILTERNG-MACHINE. f 'JS l Specification of Letters Patent.-

To all whom it 'may concern:

Be it known' that I, WILLIAM MATTHEW BAKKER, a citizen of the United States, residing 'at' McGill, in the county of White Pine, State of Nevada, have made al certain new and useful Invention in Filtering-Machines, of which the followingis aspecification. f

The invention relates to .filtering inachines.

The object of th'e invention is to provide a machine which'is simple' in construction and efficient in operation for separating the solid portions of pulp from the liquid portion thereof. I

A furtherand special object of the invention is to provide a. filtering apparatus in which centrifugal force is employed to effect a separation of the liquid and solid portions of material, to be filtered, and also to assistd in recovering and collecting the separated solid matter.

Other objects of the invention will appear' more fully hereinafter. v

The invention consists substantially in the construction, combination, location, and arrangement of parts, all as will more fully hereinafter appear as shown inthe accom- .panying drawings, andy finally pointed out in the appended claim. l

Figure '1, is a view in central vertical sec'-` tion of a filtering apparatus embodying the principles of my invention. Fig. 2, is a view in section on `the line 2, 2, Fig. l looking in the direction of the arrows.

Reference sign 3, designates a stationary framework and 4, a vertically arranged shaft journaled centrally in such framework. A frame having the arms 5, and a central hub 6, is mounted upon and suitably secured to. the shaft 4, t`o revolve therewith. Upon each arm 5, is carried a filter screen 7 Each filter sc'reen,in the particular form'of embodiment of my invention shown in the drawingsand preferably, is cylindrical in form and provided with a foraininated, perforated or meshed wall 8,'and open at both the top and. the bottom, as clearly shown..

-Each filter screen 7, -is carried by a centrally arranged vertical shaft 9, suitably journaled inthe arms 5, of the revolving frame, so that axial rotation may be imparted tov said cylindrical screens in addition to the movement thereof due to the revolutionsof the frame 5, with shaft' 4.

Rotations maybe imparted to shaft 4,-v any suitable or convenient manner, as, for 1nstance throughA a pulley 10, mounted Patented Decpf`26, 1911.', Application led May 9, 1908. Serial 110.431,945. I

thereon and y,driven from any convenient.

source of ower. The ax1al rotativefm'ovements `of the screens 7, may be imparted thereto 'in 'any suitable or convenient manner, and by any suitable or convenient arrangement of gearing. I have shown asimple arrangement wherein a sleeve 11, is mountedinthe stationary frame 3, and in position for the drive shaftl 4, to extend therethrough. Upon this stationary sleeve l11,A is carried a worm gear 1 2, at the lower end thereof, with which meshes a gear 13, carried by a shaft 14, suitably journaled inthe revolving frame 5, yand.

erence to drive shaft 4', and `carrying-gears 15, at the respective ends thereof,arranged to mesh with drive axial rotative movement to shaft. 14,-through the. intermeshing gears 15, 16, thereby imparting axial rotative movementtoshafts supported upon the revolving vframe- 5, to'

revolve therewith. From this receiving receptacle 19, the materialto be filtered is dis- 'extending in transverse direction/with ref- .75 ears 16, carried upon the shafts 9'.. Thus 1t will be seenthat as frame, revolves with shaft 4, the -intermeshing worm gears l2, 13, will impart,

soy

be supplied to tributed and delivered tothe filter screens 7 throughdelivery spouts 20. In practice Iy f prefer to arrangethe delivery endsA of 'the spouts 20, to extend into-close proximityto that portion of the inside surfaceffof the filter screens 7 'which is farthest away from' the axis of `rotation of drive shaft4, land hence to thepoint where the. greatest centrifugal force and power is developed.v The;,

liquid portion of'the material to be filtered in the operation of .the machine passes through the walls of the screen 7, and is rewhence suchliquid portion is drawn 'oft through the delivery spout L2. The solid portions of thematerial to be filtered 'received 'in the 'launder or trough .21, from able or convenlent manner.

space 23, below such screens, or to -any desired receptacles to receive lthe same. If desired and in order tol assist thefcentrifugall action -in detaching the adhering particlesg.

orportions of solid matter from the walls of the screens when 'the screens are'movedy relatively vto the revolving frame 5,l suiiciently'far forcentrifugal action to operate thereon,l and in order toclear 'the lter' screens, I may yarrange a.' waterjet 24, to play against the lter screens from the outside thereof, -as clearly indicated in the drawing Fig. 1, the water sprays being sup plied with 'water through a pipe 25, arranged in any suitable'manner. p

'In the construction andarrangement of Y fthe machinethe stationary frame A3, may be supported' in any convenient manner, as, for

' instance, by. aV base plate '26, resting-upon av main'dri'v'e shaft 4, as shown and above menvconveniently arranged foundation 27. The

tioned, 'and preferably, is a vertical`=shaft,

' 'and isjournaled at its upper nd within the sleeve 11,"and at its lower end said shaft is journaled' in a 4step bearing 28, in any suit- -It is obvious that the screens 8,`ma'y be of '.any 'suitablemateriah `or of `anyvsuitable construction, permitting a filter operation and therefore in the l use of the term' y' screen ,f I do not desire to be limited or restricted.

IIn the operati'on`of the apparatus the main 'drive.shaft4,-and with it the frame 5, l'and the parts carried thereby, is rotated 'at ahigh speed as, for `instance,a speed of two hundred revolutions per minute, while the .ed throughithearrangement of worm'gearing above described j and as shown in the '.'drawings v The material to be filtered is delivered screens 8, are moved relatively to the frames 5, and'independently of the movement thereof due to thejrevolution of the framel 5, but at ,a-very slow speed, say, for instance, at

two revolutions per minute upon their=axes,

such slow relative movements beingvimpartfrom the chute or hopper '18, into the recep- .scribed with the result that the liquid con-- taclel 1'9, and from thence'is distributed to the lter screens, inthe manner above deten't-s of the 'material' pass' through the screens and is, received 'in the launder or trough 2l, and thence escapes i through the spout- 22, while the solidrcontent is'deposited through the opened bottom of the screens into the receiving receptacle below.

A filter machine embodying theprinciples ofmyinvention may be employed for any purpose for Awhich a iltering operation is desired such, for instance,as in the separation. of solid and liquid portions of pulp in milling operations, in the preparation and treatment of ores `in connection with the cyanid or other processes, or vfor other mill'd ing work. The apparatus is equally well adapted foruse forv other purposes and-n` other relations, such, for instance, as separating the water'contained from the solid `portions of' brewers grains, mashes and pulp in distilleries, and, generally for all ypurposes where'a' filtering operation is required, or a separation ofliquid or skji'lifd-'por vtions of masses is required.

It is obviousI that many variations and changes in the ldetails of constructionand spirit and'scope of -my invention. I do not desire, therefore, to be limited or -restricted to the exact details .of construction shown and described. But. I f

' Having 'now set forth the object andnature of my invention'and a construction embo'dying the principles thereof, and having described" such construction and its functions and mode of operation, what I claim as' new 4and useful and of my own invention is:

"arrangement'might readily occur to persons skilled in the art and still fall within the The combination with 'a revolving frame,y

of two -or more screens carried'by said iframe, means for revolving said-screens each uponits own axis, means=for dehverlng' the ma.-

terial to be treated against the inner wall of the screens at a point farthest removed vfrom the axis of revolution 4of said frame, and means for delivering.' a spray against the outer 'wall of the screens at-,a point nearest theaxis of-revolution o f the frame,v 

